Exactly what is it doing the blue light means power. Has anything changed since powering it on or did it ever boot? If not exchange it under warranty
What do you mean "Won't Open"?
Do you mean you can't remove the board?
Regarding the blue light, as somebody mentioned, let it cool down - unplug it for a while. See if it boots when cool. The board should come out easily enough as long as the power cable is removed. You may have to push the plastic away from the USB ports and others to unclip them to pull the board away. If that is what you meant.
Have you been able to fix this problem? Unfortunately, my box also has this problem
Let it cool down like in a very cold environment and see if it works then. If the main cpu has gone bad it won't boot.